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US 6,476,137 B1Granted
Ternary polymer blend, the film containing it, and the easy-to-open package made therewith
AssigneeCryovac, Inc.
InventorEugenio Longo
Life of this patent
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Abstract
Object of the present invention is an extrudable blend comprising (i) a copolymer of ethylene and acrylic acid or methacrylic acid (ii) a modified EVA copolymer and (iii) a polybutylene. Included are the films comprising said blend in the sealant layer or in a layer directly adhered to the sealant layer, and the easy-to-open packages obtained therefrom.
Claims27
A thermoplastic film comprising a blend of:
- a copolymer of ethylene and acrylic acid or methacrylic acid;
- modified EVA copolymer;
- a polybutylene.
Dependencies are inferred from the claim text.